Measurements of the Separated Longitudinal Structure Function F_L from Hydrogen and Deuterium Targets at Low Q^2
Structure functions, as measured in lepton-nucleon scattering, have proven to be very useful in studying the quark dynamics within the nucleon. However, it is experimentally difficult to separately determine the longitudinal and transverse structure functions, and consequently there are substantiall...
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| creator | Tvaskis, V Tvaskis, A Niculescu, I Abbott, D Adams, G S Afanasev, A Ahmidouch, A Angelescu, T Arrington, J Asaturyan, R Avery, S Benmouna, N Berman, B L Biselli, A Blok, H P Boeglin, W U Bosted, P E Brash, E Breuer, H Chang, G Chant, N Christy, M E Connell, S H Dalton, M M Danagoulian, S Day, D Dodario, T Dunne, J A Dutta, D N El Khayari Ent, R Fenker, H C Frolov, V V Gaskell, D Garrow, K Gilman, R Gueye, P Hafidi, K Hinton, W Holt, R J Horn, T Huber, G M Jackson, H Jiang, X Jones, M K Joo, K Kelly, J J Keppel, C E Kuhn, J Kinney, E Klein, A Kubarovsky, V Liang, M Liang, Y Lolos, G Lung, A Mack, D Malace, S Markowitz, P Mbianda, G McGrath, E Mckee, D McKee, P Meekins, D G Mkrtchyan, H Moziak, B Napolitano, J Navasardyan, T Niculescu, G Nozar, M Papandreou, Z Potterveld, D Reinhold, J Roche, J Rock, S E Schulte, E Segbefia, E Smith, C Smith, G R Stoler, P Tadevosyan, V Tang, L Telfeyan, J Todor, L Ungaro, M Uzzle, A Vidakovic, S Villano, A Vulcan, W F Wang, M Warren, G Wesselmann, F Wojtsekhowski, B Wood, S A C Xu Yan, C Yuan, L Zheng, X Zihlmann, B Zhu, H |
| description | Structure functions, as measured in lepton-nucleon scattering, have proven to be very useful in studying the quark dynamics within the nucleon. However, it is experimentally difficult to separately determine the longitudinal and transverse structure functions, and consequently there are substantially less data available for the longitudinal structure function in particular. Here we present separated structure functions for hydrogen and deuterium at low four--momentum transfer squared, Q^2< 1 GeV^2, and compare these with parton distribution parameterizations and a k_T factorization approach. While differences are found, the parameterizations generally agree with the data even at the very low Q^2 scale of the data. The deuterium data show a smaller longitudinal structure function, and smaller ratio of longitudinal to transverse cross section R, than the proton. This suggests either an unexpected difference in R for the proton and neutron or a suppression of the gluonic distribution in nuclei. |
| doi_str_mv | 10.48550/arxiv.1606.02614 |
| format | Article |
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However, it is experimentally difficult to separately determine the longitudinal and transverse structure functions, and consequently there are substantially less data available for the longitudinal structure function in particular. Here we present separated structure functions for hydrogen and deuterium at low four--momentum transfer squared, Q^2< 1 GeV^2, and compare these with parton distribution parameterizations and a k_T factorization approach. While differences are found, the parameterizations generally agree with the data even at the very low Q^2 scale of the data. The deuterium data show a smaller longitudinal structure function, and smaller ratio of longitudinal to transverse cross section R, than the proton. This suggests either an unexpected difference in R for the proton and neutron or a suppression of the gluonic distribution in nuclei.</description><identifier>EISSN: 2331-8422</identifier><identifier>DOI: 10.48550/arxiv.1606.02614</identifier><language>eng</language><publisher>Ithaca: Cornell University Library, arXiv.org</publisher><subject>Deuterium ; Leptons ; Momentum transfer ; Nuclei (nuclear physics) ; Physics - High Energy Physics - Experiment ; Physics - Nuclear Experiment</subject><ispartof>arXiv.org, 2016-06</ispartof><rights>2016. This work is published under http://arxiv.org/licenses/nonexclusive-distrib/1.0/ (the “License”). 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L</creatorcontrib><creatorcontrib>Zheng, X</creatorcontrib><creatorcontrib>Zihlmann, B</creatorcontrib><creatorcontrib>Zhu, H</creatorcontrib><title>Measurements of the Separated Longitudinal Structure Function F_L from Hydrogen and Deuterium Targets at Low Q^2</title><title>arXiv.org</title><description>Structure functions, as measured in lepton-nucleon scattering, have proven to be very useful in studying the quark dynamics within the nucleon. However, it is experimentally difficult to separately determine the longitudinal and transverse structure functions, and consequently there are substantially less data available for the longitudinal structure function in particular. Here we present separated structure functions for hydrogen and deuterium at low four--momentum transfer squared, Q^2< 1 GeV^2, and compare these with parton distribution parameterizations and a k_T factorization approach. While differences are found, the parameterizations generally agree with the data even at the very low Q^2 scale of the data. The deuterium data show a smaller longitudinal structure function, and smaller ratio of longitudinal to transverse cross section R, than the proton. This suggests either an unexpected difference in R for the proton and neutron or a suppression of the gluonic distribution in nuclei.</description><subject>Deuterium</subject><subject>Leptons</subject><subject>Momentum transfer</subject><subject>Nuclei (nuclear physics)</subject><subject>Physics - High Energy Physics - Experiment</subject><subject>Physics - Nuclear 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arXiv.org</general><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>HCIFZ</scope><scope>L6V</scope><scope>M7S</scope><scope>PIMPY</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>PTHSS</scope><scope>GOX</scope></search><sort><creationdate>20160608</creationdate><title>Measurements of the Separated Longitudinal Structure Function F_L from Hydrogen and Deuterium Targets at Low Q^2</title><author>Tvaskis, V ; Tvaskis, A ; Niculescu, I ; Abbott, D ; Adams, G S ; Afanasev, A ; Ahmidouch, A ; Angelescu, T ; Arrington, J ; Asaturyan, R ; Avery, S ; Benmouna, N ; Berman, B L ; Biselli, A ; Blok, H P ; Boeglin, W U ; Bosted, P E ; Brash, E ; Breuer, H ; Chang, G ; Chant, N ; Christy, M E ; Connell, S H ; Dalton, M M ; Danagoulian, S ; Day, D ; Dodario, T ; Dunne, J A ; Dutta, D ; N El Khayari ; Ent, R ; Fenker, H C ; Frolov, V V ; Gaskell, D ; Garrow, K ; Gilman, R ; Gueye, P ; Hafidi, K ; Hinton, W ; Holt, R J ; Horn, T ; Huber, G M ; Jackson, H ; Jiang, X ; Jones, M K ; Joo, K ; Kelly, J J ; Keppel, C E ; Kuhn, J ; Kinney, E ; Klein, A ; Kubarovsky, V ; Liang, M ; Liang, Y ; Lolos, G ; Lung, A ; Mack, D ; Malace, S ; Markowitz, P ; Mbianda, G ; McGrath, E ; Mckee, D ; McKee, P ; Meekins, D G ; Mkrtchyan, H ; Moziak, B ; Napolitano, J ; Navasardyan, T ; Niculescu, G ; Nozar, M ; Papandreou, Z ; Potterveld, D ; Reinhold, J ; Roche, J ; Rock, S E ; Schulte, E ; Segbefia, E ; Smith, C ; Smith, G R ; Stoler, P ; Tadevosyan, V ; Tang, L ; Telfeyan, J ; Todor, L ; Ungaro, M ; Uzzle, A ; Vidakovic, S ; Villano, A ; Vulcan, W F ; Wang, M ; Warren, G ; Wesselmann, F ; Wojtsekhowski, B ; Wood, S A ; C Xu ; Yan, C ; Yuan, L ; Zheng, X ; Zihlmann, B ; Zhu, H</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-a520-bbc29012085f7dded87b4ed683d4f400f50cc5611a951ea6d42f755e07a3cb703</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Deuterium</topic><topic>Leptons</topic><topic>Momentum transfer</topic><topic>Nuclei (nuclear physics)</topic><topic>Physics - High Energy Physics - Experiment</topic><topic>Physics - Nuclear Experiment</topic><toplevel>online_resources</toplevel><creatorcontrib>Tvaskis, V</creatorcontrib><creatorcontrib>Tvaskis, A</creatorcontrib><creatorcontrib>Niculescu, I</creatorcontrib><creatorcontrib>Abbott, D</creatorcontrib><creatorcontrib>Adams, G S</creatorcontrib><creatorcontrib>Afanasev, A</creatorcontrib><creatorcontrib>Ahmidouch, A</creatorcontrib><creatorcontrib>Angelescu, T</creatorcontrib><creatorcontrib>Arrington, J</creatorcontrib><creatorcontrib>Asaturyan, R</creatorcontrib><creatorcontrib>Avery, 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D</creatorcontrib><creatorcontrib>Garrow, K</creatorcontrib><creatorcontrib>Gilman, R</creatorcontrib><creatorcontrib>Gueye, P</creatorcontrib><creatorcontrib>Hafidi, K</creatorcontrib><creatorcontrib>Hinton, W</creatorcontrib><creatorcontrib>Holt, R J</creatorcontrib><creatorcontrib>Horn, T</creatorcontrib><creatorcontrib>Huber, G M</creatorcontrib><creatorcontrib>Jackson, H</creatorcontrib><creatorcontrib>Jiang, X</creatorcontrib><creatorcontrib>Jones, M K</creatorcontrib><creatorcontrib>Joo, K</creatorcontrib><creatorcontrib>Kelly, J J</creatorcontrib><creatorcontrib>Keppel, C E</creatorcontrib><creatorcontrib>Kuhn, J</creatorcontrib><creatorcontrib>Kinney, E</creatorcontrib><creatorcontrib>Klein, A</creatorcontrib><creatorcontrib>Kubarovsky, V</creatorcontrib><creatorcontrib>Liang, M</creatorcontrib><creatorcontrib>Liang, Y</creatorcontrib><creatorcontrib>Lolos, G</creatorcontrib><creatorcontrib>Lung, A</creatorcontrib><creatorcontrib>Mack, D</creatorcontrib><creatorcontrib>Malace, S</creatorcontrib><creatorcontrib>Markowitz, P</creatorcontrib><creatorcontrib>Mbianda, G</creatorcontrib><creatorcontrib>McGrath, E</creatorcontrib><creatorcontrib>Mckee, D</creatorcontrib><creatorcontrib>McKee, P</creatorcontrib><creatorcontrib>Meekins, D G</creatorcontrib><creatorcontrib>Mkrtchyan, H</creatorcontrib><creatorcontrib>Moziak, B</creatorcontrib><creatorcontrib>Napolitano, J</creatorcontrib><creatorcontrib>Navasardyan, T</creatorcontrib><creatorcontrib>Niculescu, G</creatorcontrib><creatorcontrib>Nozar, M</creatorcontrib><creatorcontrib>Papandreou, Z</creatorcontrib><creatorcontrib>Potterveld, D</creatorcontrib><creatorcontrib>Reinhold, J</creatorcontrib><creatorcontrib>Roche, J</creatorcontrib><creatorcontrib>Rock, S E</creatorcontrib><creatorcontrib>Schulte, E</creatorcontrib><creatorcontrib>Segbefia, E</creatorcontrib><creatorcontrib>Smith, C</creatorcontrib><creatorcontrib>Smith, G R</creatorcontrib><creatorcontrib>Stoler, P</creatorcontrib><creatorcontrib>Tadevosyan, V</creatorcontrib><creatorcontrib>Tang, L</creatorcontrib><creatorcontrib>Telfeyan, J</creatorcontrib><creatorcontrib>Todor, L</creatorcontrib><creatorcontrib>Ungaro, M</creatorcontrib><creatorcontrib>Uzzle, A</creatorcontrib><creatorcontrib>Vidakovic, S</creatorcontrib><creatorcontrib>Villano, A</creatorcontrib><creatorcontrib>Vulcan, W F</creatorcontrib><creatorcontrib>Wang, M</creatorcontrib><creatorcontrib>Warren, G</creatorcontrib><creatorcontrib>Wesselmann, F</creatorcontrib><creatorcontrib>Wojtsekhowski, B</creatorcontrib><creatorcontrib>Wood, S A</creatorcontrib><creatorcontrib>C Xu</creatorcontrib><creatorcontrib>Yan, C</creatorcontrib><creatorcontrib>Yuan, L</creatorcontrib><creatorcontrib>Zheng, X</creatorcontrib><creatorcontrib>Zihlmann, B</creatorcontrib><creatorcontrib>Zhu, H</creatorcontrib><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>ProQuest Central</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Engineering Collection</collection><collection>Engineering Database</collection><collection>Access via ProQuest (Open Access)</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>Engineering Collection</collection><collection>arXiv.org</collection><jtitle>arXiv.org</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Tvaskis, V</au><au>Tvaskis, A</au><au>Niculescu, I</au><au>Abbott, D</au><au>Adams, G S</au><au>Afanasev, A</au><au>Ahmidouch, A</au><au>Angelescu, T</au><au>Arrington, J</au><au>Asaturyan, R</au><au>Avery, S</au><au>Benmouna, N</au><au>Berman, B L</au><au>Biselli, A</au><au>Blok, H P</au><au>Boeglin, W U</au><au>Bosted, P E</au><au>Brash, E</au><au>Breuer, H</au><au>Chang, G</au><au>Chant, N</au><au>Christy, M E</au><au>Connell, S H</au><au>Dalton, M M</au><au>Danagoulian, S</au><au>Day, D</au><au>Dodario, T</au><au>Dunne, J A</au><au>Dutta, D</au><au>N El Khayari</au><au>Ent, R</au><au>Fenker, H C</au><au>Frolov, V V</au><au>Gaskell, D</au><au>Garrow, K</au><au>Gilman, R</au><au>Gueye, P</au><au>Hafidi, K</au><au>Hinton, W</au><au>Holt, R J</au><au>Horn, T</au><au>Huber, G M</au><au>Jackson, H</au><au>Jiang, X</au><au>Jones, M K</au><au>Joo, K</au><au>Kelly, J J</au><au>Keppel, C E</au><au>Kuhn, J</au><au>Kinney, E</au><au>Klein, A</au><au>Kubarovsky, V</au><au>Liang, M</au><au>Liang, Y</au><au>Lolos, G</au><au>Lung, A</au><au>Mack, D</au><au>Malace, S</au><au>Markowitz, P</au><au>Mbianda, G</au><au>McGrath, E</au><au>Mckee, D</au><au>McKee, P</au><au>Meekins, D G</au><au>Mkrtchyan, H</au><au>Moziak, B</au><au>Napolitano, J</au><au>Navasardyan, T</au><au>Niculescu, G</au><au>Nozar, M</au><au>Papandreou, Z</au><au>Potterveld, D</au><au>Reinhold, J</au><au>Roche, J</au><au>Rock, S E</au><au>Schulte, E</au><au>Segbefia, E</au><au>Smith, C</au><au>Smith, G R</au><au>Stoler, P</au><au>Tadevosyan, V</au><au>Tang, L</au><au>Telfeyan, J</au><au>Todor, L</au><au>Ungaro, M</au><au>Uzzle, A</au><au>Vidakovic, S</au><au>Villano, A</au><au>Vulcan, W F</au><au>Wang, M</au><au>Warren, G</au><au>Wesselmann, F</au><au>Wojtsekhowski, B</au><au>Wood, S A</au><au>C Xu</au><au>Yan, C</au><au>Yuan, L</au><au>Zheng, X</au><au>Zihlmann, B</au><au>Zhu, H</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Measurements of the Separated Longitudinal Structure Function F_L from Hydrogen and Deuterium Targets at Low Q^2</atitle><jtitle>arXiv.org</jtitle><date>2016-06-08</date><risdate>2016</risdate><eissn>2331-8422</eissn><abstract>Structure functions, as measured in lepton-nucleon scattering, have proven to be very useful in studying the quark dynamics within the nucleon. However, it is experimentally difficult to separately determine the longitudinal and transverse structure functions, and consequently there are substantially less data available for the longitudinal structure function in particular. Here we present separated structure functions for hydrogen and deuterium at low four--momentum transfer squared, Q^2< 1 GeV^2, and compare these with parton distribution parameterizations and a k_T factorization approach. While differences are found, the parameterizations generally agree with the data even at the very low Q^2 scale of the data. The deuterium data show a smaller longitudinal structure function, and smaller ratio of longitudinal to transverse cross section R, than the proton. This suggests either an unexpected difference in R for the proton and neutron or a suppression of the gluonic distribution in nuclei.</abstract><cop>Ithaca</cop><pub>Cornell University Library, arXiv.org</pub><doi>10.48550/arxiv.1606.02614</doi><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | EISSN: 2331-8422 |
| ispartof | arXiv.org, 2016-06 |
| issn | 2331-8422 |
| language | eng |
| recordid | cdi_arxiv_primary_1606_02614 |
| source | Freely Accessible Journals; arXiv.org |
| subjects | Deuterium Leptons Momentum transfer Nuclei (nuclear physics) Physics - High Energy Physics - Experiment Physics - Nuclear Experiment |
| title | Measurements of the Separated Longitudinal Structure Function F_L from Hydrogen and Deuterium Targets at Low Q^2 |
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